A frustrating start to the 2019 season continues for Orioles starting pitcher Alex Cobb, who was placed on the 10-day injured list for the third time since late March.

The 31-year-old right-hander continues to deal with a lower back strain and has allowed an alarming nine home runs in 12 1/3 innings. Cobb allowed four homers in Friday’s 6-1 loss at Minnesota and is sporting a 10.95 ERA in three starts this season.

Originally scheduled to be the Opening Day starter in spring training, Cobb sustained a groin strain in his final Grapefruit League start that landed him on the IL and made only one start before being sidelined again with lower back spasms. Manager Brandon Hyde told reporters prior to Sunday’s series finale against the Twins the Orioles want to give Cobb more time to fully recover to get more extension on his pitches. John Means and David Hess will fill the final two spots in the starting rotation behind veterans Andrew Cashner, Dylan Bundy, and Dan Straily in Cobb’s absence.

The Orioles also made a notable change at the catcher position as Austin Wynns was recalled from Triple-A Norfolk and veteran Jesus Sucre was designated for assignment. Entering spring training as a favorite to make the club, Wynns missed extensive time with a strained oblique and was sent to the minors after being activated from the IL earlier this month. The 28-year-old batted .333 with an .887 on-base plus slugging percentage in 39 plate appearances between Norfolk and Double-A Bowie and hit a respectable .255 with four homers in 118 plate appearances as a rookie with Baltimore last season.

Sucre, 30, began the season as Baltimore’s starting catcher and was batting .210 with a .511 OPS in 67 plate appearances. Wynns and Pedro Severino will now share the catching duties.

In an effort to reinforce a taxed bullpen, the Orioles also optioned right-hander Jimmy Yacabonis to Norfolk and recalled right-handers Branden Kline and Luis Ortiz before Sunday’s game. Later in the day, Baltimore also claimed right-handed relief pitcher Shawn Armstrong off waivers from Seattle, meaning a subsequent 25-man roster move will be made when he reports to the club.